Effect of Repeated Whole Blood Donations on Aerobic Capacity and Hemoglobin Mass in Moderately Trained Male Subjects: A Randomized Controlled Trial

Meurrens, Julie; Steiner, Thomas; Ponette, Jonathan; Janssen, Hans Antonius; Ramaekers, Monique; Wehrlin, Jon Peter; Vandekerckhove, Philippe; Deldicque, Louise

doi:10.1186/s40798-016-0067-7

Sports Medicine - Open

Table 3 Effect of repeated blood donations on exercise parameters

From: Effect of Repeated Whole Blood Donations on Aerobic Capacity and Hemoglobin Mass in Moderately Trained Male Subjects: A Randomized Controlled Trial

		Test series 1					Test series 2					Test series 3
		-1w	2d	1w	2w	4w	-1w	2d	1w	2w	4w	-1w	2d	1w	2w	4w
Lactate 190W	P	3.8 ± 1.1	3.2 ± 1.0	3.5 ± 1.1	3.5 ± 1.2	3.5 ± 1.2	2.1 ± 0.8#	3.1 ± 1.5	3.0 ± 1.4*	2.9 ± 1.2*	3.1 ± 1.4*	2.8 ± 1.1##	2.6 ± 1.0	2.2 ± 0.9	2.1 ± 0.7*	1.7 ± 0.3*
(mmol/l)	D	2.8 ± 0.3	3.1 ± 0.3	3.0 ± 0.4	3.0 ± 0.3	2.6 ± 0.4	2.0 ± 0.2##	2.3 ± 0.3*	2.5 ± 0.3**	2.1 ± 0.3	2.1 ± 0.2	2.4 ± 0.4###	2.1 ± 0.3	2.0 ± 0.3*	1.8 ± 0.3**	1.7 ± 0.2***
Lactate post	P	11.9 ± 0.8	12.1 ± 0.7	11.6 ± 0.2	13.6 ± 1.1	13.2 ± 1.9	9.3 ± 0.9	10.2 ± 2.3	10.7 ± 1.8	9.7 ± 0.9	11.2 ± 1.2	10.2 ± 1.3	9.8 ± 0.7	10.3 ± 1.3	9.8 ± 1.1	8.7 ± 1.0
(mmol/l)	D	13.6 ± 0.8	13.0 ± 1.0	12.1 ± 1.1	11.8 ± 1.0	10.8 ± 0.6**	11.5 ± 1.1##	10.9 ± 0.9	11.0 ± 1.1	10.8 ± 0.9	10.6 ± 0.8	11.8 ± 1.0###	10.2 ± 1.3	9.5 ± 1.2*	10.1 ± 0.7	9.2 ± 0.9*
HR max	P	184 ± 4	183 ± 3	179 ± 5*	178 ± 6*	177 ± 4**	169 ± 7#	174 ± 5*	174 ± 4*	178 ± 4**	175 ± 5*	176 ± 4	174 ± 5	177 ± 4	180 ± 5	177 ± 4
(bpm)	D	187 ± 4	187 ± 3	183 ± 3*	180 ± 3***	182 ± 3**	180 ± 4#	181 ± 3	182 ± 2	182 ± 2	180 ± 3	181 ± 3###	178 ± 3	175 ± 5	181 ± 3	179 ± 4
Oxygen pulse	P	0.31 ± 0.02	0.31 ± 0.03	0.30 ± 0.03	0.31 ± 0.03	0.29 ± 0.03	0.32 ± 0.04	0.30 ± 0.03	0.31 ± 0.04	0.29 ± 0.03	0.28 ± 0.03	0.29 ± 0.03	0.30 ± 0.04	0.29 ± 0.03	0.29 ± 0.03	0.30 ± 0.04
(ml O₂/beat/kg)	D	0.31 ± 0.01	0.30 ± 0.02	0.29 ± 0.01*	0.29 ± 0.01**	0.29 ± 0.01*	0.30 ± 0.01##	0.28 ± 0.01*	0.29 ± 0.01	0.30 ± 0.01	0.30 ± 0.01	0.29 ± 0.01##	0.27 ± 0.01*	0.28 ± 0.01*	0.26 ± 0.01**	0.27 ± 0.01*
VE max	P	139 ± 11	132 ± 14	130 ± 15	125 ± 15	124 ± 11*	131 ± 8	119 ± 10	133 ± 10	136 ± 12	137 ± 17	138 ± 16	134 ± 11	139 ± 12	147 ± 11*	139 ± 13
(l/min)	D	135 ± 7	135 ± 6	130 ± 6	128 ± 9	126 ± 8	123 ± 7#	122 ± 7	131 ± 7*	137 ± 7**	126 ± 6	145 ± 7	131 ± 8*	134 ± 7*	143 ± 7	135 ± 6
Total time	P	16.9 ± 1.2	16.7 ± 1.2	16.7 ± 1.4	16.7 ± 1.5	16.9 ± 1.4	17.4 ± 2.4#	18.3 ± 3.1*	18.2 ± 2.3*	18.3 ± 2.4*	18.4 ± 2.4*	18.0 ± 2.2###	18.1 ± 2.2	18.9 ± 2.4	19.5 ± 2.2*	18.3 ± 1.7
(min)	D	16.9 ± 0.9	16.1 ± 1.0**	16.2 ± 0.8***	16.3 ± 0.8***	16.5 ± 0.9*	17.7 ± 1.1	17.2 ± 1.2*	16.9 ± 1.2	17.9 ± 1.2	17.8 ± 1.2	17.4 ± 1.1	16.8 ± 1.1	17.7 ± 1.1	18.5 ± 1.2	17.1 ± 0.9

Values are means ± SEM (n = 7 in P and n = 13 in D for test series 1; n = 5 in P and n = 13 in D for test series 2 and 3. HR heart rate, VE ventilation, P placebo, D donation. ^# p < 0.05, ^## p < 0.01, ^### p < 0.001 vs. -1w of test series 1, same group. *p < 0.05, **p < 0.01, ***p < 0.001 vs. -1w of the same test series, same group

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